OPTIMIZATION OF PHYSICOCHEMICAL PROPERTIES AND CONDITIONS OF PREPARATION OF CATALYSTS USED FOR THE SYNTHESIS OF FLUORINATED ORGANIC-COMPOUNDS

The physicochemical properties of magnesium fluoride and chromium-magn esium fluoride catalyst, and their activities in dehydrochlorination a nd fluorination of chlorinated aliphatic hydrocarbons have been studie d as functions of preparation conditions. The optimal characteristics of the catalysts (S-sp, V-Sigma, V-mi, V-ma, P) with respect to dehydr ochlorination of tetrachloropropane and fluorination of trifluorotrich loroethane have been found. The dependence of the activities of MgF2 a nd CrF3/MgF2 on their porous structure has been revealed. The optimal technological parameters have been determined, which ensure preparatio n of magnesium fluoride and chromium-magnesium fluoride catalysts with required physicochemical properties.